Background Processing

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Thread: Background Processing

  1. #1
    Join Date
    Dec 1969

    Default Background Processing

    Will it be possible for me to asynchronously run any code on the client (even by downloading an activeX control)after the successful loading of a web page(just like how multithreading works).The problem relates to a map server which calls a VB EXE running at the server and control is transferred to the VB exe for processing whenever events are fired on the client.How can I spawn another instance of the EXE on the client (if at all possible)for local processing?

  2. #2
    Join Date
    Dec 1969

    Default real curious

    what type of GIS you are using that would require that ability?<BR><BR>Most web based mapping systems (that I have used at least) use a form post method to transfer application state information when the server side is a VB application. This is how MapObjects Internet Map Server works for example.<BR><BR>There are some that use ActiveX Components in the browser (IE only) such as AutoDesk&#039;s MapGuide application.<BR><BR>By and large the best systems for serving maps over the internet (or intranet) is ArcIMS. It supports high level dhtml driven HTML/JavaScript clients, Java applet viewers, server side ASP, and Cold Fusion. The down side is cost (about 20K) plus you have to have a javaServlet on the server.

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